3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo preg_replace(array('/(^|_)+(.)/e', '/\.(.)/e'), array("strtoupper('\\2')", "'_'.strtoupper('\\1')"), 'ahoj_jak.se.mas_d');

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for Typed properties v2
Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/hRtUo on line 3
Output for Array change keys
Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/hRtUo on line 3
Output for Lexical anon
Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/hRtUo on line 3

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page